#include<iostream>
#include<cmath>

void printStaticNum(){
    static int num = 10;
    std::cout<<num++<<std::endl;
}

int main()
{
    using namespace std;
    cout<<(1 << 20)<<endl;           //  2的20次方
    
    printStaticNum();
    printStaticNum();
    return 0;
}